宋淑娥

（辽宁省地质实验研究所，辽宁沈阳110032）

摘要：应用离子色谱法对饮用天然矿泉水中硫酸盐进行直接测定，优化了淋洗液配比浓度。结果表明，方法检出限为0.57滋g/L，方法回收率在98.35%～105.43%之间，方法精密度（RSD%）低于1.62%。该方法具有测试速度快、准确度高、分离度高等优势，适合饮用天然矿泉水中硫酸盐的测定。

关键词：硫酸盐；饮用天然矿泉水；离子色谱

Determination of Sulfate in Drinking Natural Mineral Water by Ion Chromatography

SONG Shu-e

（Liaoning Institute of Geological Experiments，Shenyang 110032，China）

Abstract: Ion chromatography is applied to determine sulfate drinking natural mineral water by direct measurement tooptimize eluent concentration ratio. The results showed that the detection limit was 0.57滋g/ L；the recoveries rangedfrom 98.35% to 105.43%；and precision（RSD%）of the method was less than 1.62%. The method has the advantages offast test speed，high accuracy and high degree of separation. It is suitable for determination of sulfate in drinkingnatural mineral water.

Key words: sulfate；drinking natural mineral water；ion chromatography

（2017年第20卷第2期）